📣 HiringCafe is hiring a Founding Growth Hacker! Learn More · Apply here
Senior Python Developer Jobs in Fairfield, CT, US
1,800+ senior python developer jobs from 620+ companies hiring in Fairfield, CT, US.
3w
Save
Mark Applied
Hide
Senior Python/AI Engineer Engineer - Finance - Assistant Vice President
Rutherford, New Jersey, United States
$121k-$182k/yr HybridFull Time
Senior Python developer with risk analytics experience, CI/CD, Agile, and TDD; Capital Markets experience preferred.
Python, Java, Git, JIRA, Jenkins, SonarQube, Oracle SQL Developer, Linux, Unix, VisualVM, Lightweight build tools (Lightspeed, Artifactory), VSCode, IntelliJ, Spring Framework, MongoDB, CI/CD, Git/Bitbucket
2mo
Save
Mark Applied
Hide
Python Software Engineer
New York, New York, United States
$70-$90/hr OnsiteFull Time
7+ YOE7–10+ years of professional software development experience; strong Python; experience with Azure Functions, APIs, and event-driven systems; cloud and AI/ML exposure.
Python, C#, TypeScript, Azure Functions, APIs, Azure Event Grid, Durable Functions, API Management, Azure SDKs, Azure Cognitive Services, LangChain, AutoGen, Semantic Kernel, SQL, NoSQL
3w
Save
Mark Applied
Hide
Senior Software Engineer - Python
New York, New York, United States
OnsiteFull Time
Strong Python development, data engineering, ETL, and SQL expertise; experience with cloud data platforms and data reconciliation.
Python, Informatica, Snowflake, Redshift, BigQuery, SQL, Shell, Bash, PowerShell
3w
Save
Mark Applied
Hide
Senior Developer I- Full Stack Python Developer (Investment Technology)
New York, New York, United States
$115k-$130k/yr HybridFull Time
5+ YOE5+ years of software development; strong Python; RESTful APIs; web frameworks; modern JavaScript; SQL; CI/CD; Kubernetes/OpenShift; Agile experience; excellent communication.
Python, FastAPI, Flask, Dash, Streamlit, React, Angular, JavaScript, TypeScript, SQL, Snowflake, MS SQL Server, Git, Azure DevOps, Kubernetes, OpenShift
1mo
Save
Mark Applied
Hide
Backend Senior Lead Software Engineer- Python
Jersey City, New Jersey, United States
$171k-$260k/yr OnsiteFull Time
5+ YOESenior lead software engineer with 5+ years of Python experience, enterprise platforms, cloud-native tech, and agile development.
Python, Cloud technologies, Enterprise software, Agile methodologies, Code review, Software development lifecycle
3w
Save
Mark Applied
Hide
AWS Senior Lead Software Engineer- Java / Python
New York, New York, United States
$171k-$260k/yr OnsiteFull Time
5+ YOE5+ years in software engineering; experience delivering system design, development, testing, and operations; proficient in SQL and Java, Spring Boot, microservices, or Python API development; strong AWS experience with services like Step Functions, S3, SQS, Lambda; exposure to data lakes and ML concepts; automation and CD practices.
Java, Python, Spring Boot, Microservices, SQL, AWS, SageMaker, Bedrock, S3, SQS, Lambda, EMR, Glue, Spark, Snowflake, Databricks, TensorFlow, PyTorch, scikit-learn
1w
Save
Mark Applied
Hide
Senior Lead Software Engineer, Back End (Python/Node.js)
McLean or New York City or Cambridge
$230k-$286k/yr OnsiteFull Time
6+ YOESenior backend software engineer with 6+ years experience, cloud (AWS/Azure/GCP), leadership experience preferred; strong Java, Python, Node.js, Go, Scala, and cloud/container tech.
Java, Python, SQL, Node.js, Go, Scala, Docker, Kubernetes, AWS, Azure, GCP
3w
Save
Mark Applied
Hide
Senior Quant Developer
New York, New York, United States
$140k-$160k/yr OnsiteFull Time
5+ YOESenior software engineer with 5+ years in Python, data pipelines, and financial domain knowledge; strong delivery track record and AI tooling experience.
Python, Pandas, NumPy, FastAPI, Flask, React, TypeScript, Kubernetes, Airflow, Kafka, Streamlit, Tableau, Claude Code, LLM
1d
Save
Mark Applied
Hide
Senior Software Engineer, Developer Experience
Bellevue or Livingston or New York or San Francisco or Sunnyvale
$165k-$242k/yr HybridFull Time
7+ YOESenior software engineer with 7+ years in production platforms, distributed systems, and developer tooling.
Go, Python, Kubernetes, GitHub Actions, Buildkite, Bazel, Artifactory, MCP
4d
Save
Mark Applied
Hide
Senior Software Engineer, Academics
New York, New York, United States
$152k-$209k/yr HybridFull Time
6+ YOESenior software engineer with 6+ years experience in software development; proficient in Python, C++, SQL, Java, and R; experience with AWS, Snowflake, DBT, and Databricks; able to lead and collaborate in cross-functional teams.
Python, C++, SQL, Java, R, AWS, Snowflake, DBT, Databricks
1mo
Save
Mark Applied
Hide
Senior Product Engineer
London or New York City
£90k-£200k/yr HybridFull Time
Senior Product Engineer with experience across mobile/web, Dart/Flutter, Kotlin, Python, Next.js/TypeScript, Rust; fast-paced, owner mindset.
Dart/Flutter, Kotlin, Python, Next.js/TypeScript, Rust, gRPC, Google Cloud Platform, Kubernetes, Cloud Run
1mo
Save
Mark Applied
Hide
Senior Software Engineer
Hoboken, New Jersey, United States
$140k-$160k/yr HybridFull Time
Senior full stack engineer with React/TypeScript, Java/Spring Boot, Python or Go, AWS, REST/GraphQL, CI/CD, and strong frontend/backend balance.
React, TypeScript, Java, Spring Boot, Python, Go, AWS, REST, GraphQL, CI/CD, Git, CloudFormation, DynamoDB, S3, Lambda, ECS, Step Functions, AppSync, SQS/SNS
2d
Save
Mark Applied
Hide
Software Engineer (C++ & Python) (New York, NY, US)
New York, New York, United States
$103k-$129k/yr OnsiteFull Time
7+ YOE7 years C++ development experience; strong Python experience; database and data processing skills; SDLC knowledge; excellent communication and collaboration at senior levels.
Python, C++, PySpark, Snowflake, Databricks, SQL, Jira, HP Quality Center
2w
Save
Mark Applied
Hide
Senior Software Engineer, Fullstack
Austin or New York
$166k-$200k/yr OnsiteFull Time
6+ YOE6+ years in software development; strong Java/Python; cloud-based development; AWS; Docker/Kubernetes; GitHub/Argo; able to mentor and communicate with stakeholders.
Java, Python, React, Typescript, AWS, Docker, Kubernetes, GitHub, Argo
1d
Save
Mark Applied
Hide
Senior Fullstack Engineer
Mountain View or New York City or Los Angeles or San Francisco
$150k-$210k/yr OnsiteFull Time
4+ YOE4+ years software development experience; strong backend/full-stack skills (Python); frontend JS frameworks; containers and cloud knowledge; strong communication and collaboration.
Python, Go, Typescript, React, Docker, Kubernetes, Vue
2mo
Save
Mark Applied
Hide
Senior Software Engineer
New York or Boston
$155k-$185k/yr RemoteFull Time
5+ YOE5+ years backend or full stack development; Python and/or Node; RESTful APIs; cloud (AWS); databases; AI-driven features; strong teamwork; proactive learning.
Python, Node.js, AWS, RESTful APIs, RabbitMQ, Kafka, SQS, WebSockets, Infrastructure as Code
1mo
Save
Mark Applied
Hide
Senior AI Engineer
South San Francisco or Princeton or Thousand Oaks or Bellevue or New York
HybridFull Time
AI Engineer with software development and LLM solution experience; strong Python, LLM patterns/tools, cloud platforms (AWS, Databricks, Azure), and DevOps; design and deliver scalable software; cross-functional collaboration.
Python, Javascript, FastAPI, Django, AWS, Databricks, Azure, Terraform, CloudFormation, React, Next.js, Tailwind CSS, LangChain, DSPy, Docker, Kubernetes, Redis, Unity Catalog, OpenAI API, Anthropic, AWS Bedrock, RAG, Vector DB, PEFT, LoRA
2w
Save
Mark Applied
Hide
Senior Software Engineer
New York, New York, United States
$245k-$360k/yr OnsiteFull Time
3+ YOE3-5+ years of commercial software development; strong in Java, C#, Python, JavaScript, or Go; cloud platforms (AWS/GCP/Azure) and Kubernetes; AI fluency; strong problem solving, communication, and ownership.
Java, C#, Python, JavaScript, Go, AWS, GCP, Azure, Kubernetes
2mo
Save
Mark Applied
Hide
Senior Software Engineer | API
New York, New York, United States
OnsiteFull Time
Senior API-focused backend/full-stack engineer with experience designing scalable REST APIs, platform infrastructure, and developer tooling.
Go, Python, Java, C#, React, TypeScript
1w
Save
Mark Applied
Hide
Senior Software Engineer
Redmond or New York
$120k-$235k/yr OnsiteFull Time
4+ YOEBS in CS or related field and 4+ years of software engineering; proficient in C, C++, C#, Java, JavaScript, or Python; experience with Windows development, CI/CD, and security practices; willing to undergo security screenings.
C, C++, C#, Java, JavaScript, Python, .NET, Win32 API, WinUI3, UWP, CI/CD, Telemetry, Windows development
1mo
Save
Mark Applied
Hide
Senior Software Engineer, Identity
San Francisco or New York or Washington
$130k-$250k/yr OnsiteFull Time
5+ YOE5+ years software development; CS degree or equivalent; experience with distributed systems; Python/Django stack; strong code quality and scalability.
Python, Django, Celery, Airflow, Kafka, React, Redux, Mapbox, PostgreSQL, Elasticsearch, Bedrock, SageMaker, AWS, Pulumi, Terraform, Kubernetes
1w
Save
Mark Applied
Hide
Senior Software Engineer - Workplace Productivity Engineer
New York, New York, United States
OnsiteFull Time
5+ YOE5+ years in software development; building production services and automation using C#, Python, PowerShell; Bachelor's in CS/Engineering/Mathematics or equivalent.
C#, Python, PowerShell, Azure, Microsoft 365, Google Workspace, GitHub, MCP, Azure Entra ID, DLP
1mo
Save
Mark Applied
Hide
Senior Application Developer
New York, New York, United States
$145k-$155k/yr HybridFull Time
5+ YOELead developer for enterprise systems; strong backend and frontend integration; AI/automation experience a plus; 5-7 years in application development; Real Estate/Attractions experience a plus.
Python, C#, Java, C++, Git, APIs, Salesforce, ETL, Tableau, Power BI, LLMs, AI, Automation
1mo
Save
Mark Applied
Hide
Senior Software Development Engineer
New York, New York, United States
$156k-$211k/yr OnsiteFull Time
7+ YOE7+ years software development in financial services; Python expertise; experience with trading/risk systems and market data vendors; API/microservices; AI concepts.
Python, APIs, Microservices, Git, CI/CD, Testing frameworks
1mo
Save
Mark Applied
Hide
Senior Software Engineer - Client Portal
Brooklyn, New York, United States
$145k-$175k/yr OnsiteFull Time
Senior full-stack engineer with Python (FastAPI), React/React Native, Expo, and AWS; strong emphasis on code quality, testing, and collaboration.
FastAPI, Python, React, React Native, Expo, AWS
2mo
Save
Mark Applied
Hide
Senior Software Engineer, Full Stack
New York City or San Francisco
$160k-$220k/yr HybridFull Time
4+ YOE4+ years of full-stack development; Python/TypeScript; React or Vue; strong SQL (PostgreSQL/MySQL); clear communication.
Python, TypeScript, Flask, React, Apollo GraphQL, PostgreSQL, Airflow, AWS, Google Cloud Platform
2mo
Save
Mark Applied
Hide
Senior Software Engineer, Development Tools
London or New York
HybridFull Time
7+ YOE7+ years in software development or DevOps; strong C++, Rust, Python; large monorepo build systems; Linux toolchains; DevOps tooling; performance and scalability focus; strong collaboration and communication.
C++, Rust, Python, Bazel, Buck2, CMake, Rattler, Pixi, Linux, Docker, Podman, Git, CI/CD, Infrastructure as Code, Configuration as Code
2mo
Save
Mark Applied
Hide
Senior Software Engineer, Wallets
New York, New York, United States
$170k-$260k/yr OnsiteFull Time
5+ YOE5+ years of software development; strong CS fundamentals; proficient in Go, Python, Rust, C#, Java, or C++; experience with distributed systems and scalable web services; strong communication and product mindset.
Go, Python, Rust, C#, Java, C++, NodeJS
2mo
Save
Mark Applied
Hide
Senior Quant Developer
New York, New York, United States
$151k-$252k/yr OnsiteFull Time
4+ YOE3+ years C/C++ enterprise solutions; 4+ years experience; 2+ years large-scale projects; 3+ years Linux; Python; strong communication; global team experience; cloud knowledge.
C/C++, Python, Linux, AWS, Azure, Kubernetes, Lambdas
1w
Save
Mark Applied
Hide
Senior Software Engineer II
New York City, New York, United States
$176k-$196k/yr OnsiteFull Time
7+ YOE7+ years in software development with Java, Go, or Python; microservices; AWS; Kafka; gRPC/Thrift; Agile/Scrum; strong communication.
Java, Go, Python, gRPC, Thrift, Kafka, AWS
2w
Save
Mark Applied
Hide
Full Stack Developer (.Net/Python)
Denver or New York
$130k-$160k/yr HybridFull Time
7+ YOE7+ years of industry experience; BA/BS in Computer Science or related field; strong .NET and Python skills; financial services domain knowledge.
C#, Python, Angular, React, Vue, HTML, CSS, JavaScript, XML, JSON, JQuery, REST, Docker, Kubernetes, SQL, NoSQL, CI/CD
1w
Save
Mark Applied
Hide
Senior Software Engineer II, Developer Experience
New York or San Francisco or Santa Clara
$213k-$250k/yr HybridFull Time
8+ YOE8+ years in platform, backend, or fullstack engineering; production LLM experience; API and developer ergonomics focus; Python or Java; CI/CD tooling; cloud-native stack; security-minded.
Python, Java, CI/CD tooling, GitHub Actions, CircleCI, ArgoCD, Jenkins, Docker, AWS, Terraform, Kubernetes, Vault, Cloudsmith
2w
Save
Mark Applied
Hide
Senior Software Engineer, Applications
New York City, New York, United States
$180k-$210k/yr HybridFull Time
5+ YOE5+ years in software engineering; backend services or microservices; Node.js; Go or Python; frontend with React; cloud-native (Kubernetes, AWS/GCP/Azure); SQL databases; CI/CD; security best practices; AI-assisted development tools.
Node.js, Go, Python, React, Kubernetes, AWS, GCP, Azure, Postgres, MySQL, CircleCI
3mo
Save
Mark Applied
Hide
Senior Software Engineer
Austin or San Francisco or New York
$180k-$260k/yr HybridFull Time
5+ YOESenior software engineer with 5+ years in distributed systems, REST APIs, frontend/backend, cloud, and regulated environments.
Python, TypeScript, Node.js, React, AWS, Docker, Kubernetes, Terraform, Ansible, Git, SQL, NoSQL, CloudFormation, DataDog, Prometheus, Grafana, FDA 21 CFR Part 11, SOC2
1mo
Save
Mark Applied
Hide
Senior Quantum Software Engineer
New Haven, Connecticut, United States
$124k-$187k/yr OnsiteFull Time
5+ YOEBS or higher in science/engineering; 5+ years software development; strong Python; experience in quantum computing or scientific computing; troubleshooting; Git; excellent communication.
Python, Git, Profilers, Scientific computing tools
1w
Save
Mark Applied
Hide
Senior Software Engineer - Scala
New York City, New York, United States
$144k-$213k/yr HybridFull Time
5+ YOE5+ years software development; strong functional programming; Scala; scalable backend design; cloud-native, microservices; fault-tolerant systems; Cats-Effect or ZIO; AWS/GCP/Azure; Python in ML; Agile; payments/ad tech knowledge.
Scala, Cats-Effect, ZIO, AWS, GCP, Azure, Python
2w
Save
Mark Applied
Hide
Senior Applied AI Engineer (Observability)
San Francisco or New York City or United States
$200k-$270k/yr HybridFull Time
Senior AI backend engineer with experience in observability, evaluation, and production AI systems. Proficient in Python, APIs, distributed systems, and ML tooling.
Python, APIs, Distributed systems, LLMs, Agent orchestration, Tool calling, AI observability, Evaluation frameworks
1mo
Save
Mark Applied
Hide
Senior Software Engineer - Build Tooling
New York or Connecticut
$142k-$199k/yr HybridFull Time
5+ YOE8+ years in software development; CI/CD experience; Python/Java/C++/C#; Linux/Unix; AWS; Kubernetes/Docker; IaC (Terraform/CloudFormation); GitOps; on-call readiness.
Python, Java, C++, C#, Bash, Powershell, GitLab CI, GitHub Actions, TeamCity, Jenkins, Argo, SonarQube, Linux, AWS, Docker, Kubernetes, Helm, Terraform, CloudFormation, GitOps, CI/CD
2w
Save
Mark Applied
Hide
Senior Software Engineer, Identity & Access
New York City or San Francisco
$212k-$318k/yr HybridFull Time
5+ YOE5+ years software development; strong Python; design/build identity or authentication systems; security/privacy focus; data modeling and storage; consumer-facing features; collaborative teamwork.
Python, Identity and access management, Authentication systems, REST APIs
1mo
Save
Mark Applied
Hide
Senior Software Engineer, Voice AI
Boston or New York or Remote
$138k-$221k/yr HybridFull Time
5+ YOE5+ years fullstack web development; backend Java/Kotlin and Python; React frontend; AWS; Docker; Git; Figma to UI; scalable DB design; AI/LLM integration.
Java, Kotlin, Python, React, Tailwind, Bootstrap, AWS, Docker, Git, Figma
HiringCafe market data
Senior Python Developer Jobs market signals in Fairfield, CT, US
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
1,800+
Hiring companies
620+
Fresh sample
55% new in 30d
Salary visibility
89% show pay
Companies appearing in this market
JPMorgan ChaseBloombergCapgeminiCapital OneCitiCLEARClearwater AnalyticsCompass
Work location mix in visible results
Onsite: 58Hybrid: 47Remote: 5